Vehicle Travel Control for Rapid Post-Collision Route Correction
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Solution Overview
Problem
Existing travel control apparatuses for vehicles face challenges in quickly estimating and correcting travel routes after a primary collision due to complex arithmetic processing, which leads to insufficient quick response and inadequate handling of high-speed travel scenarios.
Innovation Solution
A travel control apparatus utilizing a stereo camera, image processing unit, and travel control unit to recognize the surrounding environment, estimate collision time, and perform integrated control, enabling quick estimation and correction of travel routes post-collision without complex arithmetic processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex arithmetic processing is used to estimate and correct travel routes after collision, then estimation accuracy is improved, but response time increases and quick response capability deteriorates
Solution Approach 1:
The system pre-calculates and stores multiple possible post-collision travel routes and their corresponding safety evaluations before a collision occurs. When a collision happens, the system simply selects from these pre-prepared options based on real-time sensor data, avoiding complex arithmetic processing during the critical response period while maintaining estimation accuracy.
Solution Approach 2:
The system dynamically adjusts the level of processing based on the situation. During normal operation, comprehensive arithmetic processing is performed to build accurate route models. During actual collision events, the system switches to a faster, simplified selection process that uses pre-computed data, thus achieving both accuracy and quick response.
2Reliability
If comprehensive sensor integration and real-time processing are implemented, then safety monitoring capability is improved, but device complexity increases
Solution Approach 1:
The travel control unit is designed to perform multiple functions: it controls normal vehicle travel, processes collision detection data, estimates post-collision routes, and executes safety control operations. By making the control unit multi-functional, the system achieves comprehensive safety monitoring without adding separate dedicated hardware for each function, thus avoiding increased device complexity.
Solution Approach 2:
The system merges the collision detection function, travel route estimation function, and safety control function into a single integrated travel control apparatus. This consolidation allows comprehensive safety monitoring while reducing the overall system structure complexity compared to having separate independent systems for each function.
Data Source
AI summary
A travel control apparatus for a vehicle includes a surrounding environment recognition device, a collision time calculator, a collision object estimator, an after-collision travel range estimator, a collision detector, and a travel control unit. The surrounding environment recognition device includes a recognizer, a collision object recognizer that recognizes an object that has a possibility to come into collision with the vehicle, and a safety degree region setter that sets safety degree regions. The collision object estimator estimates a travel route of the object and a collision position on the vehicle. The after-collision travel range estimator estimates a travel range of the vehicle after the collision based on the estimated collision position. When the collision between the vehicle and the object is detected, the travel control unit performs travel control depending on a safety degree in one of the safety degree regions in front of the travel range after the collision.